Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-04-2024 23:04

General

  • Target

    88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c.exe

  • Size

    687KB

  • MD5

    cce727be788606ef9a0b6d32fca17540

  • SHA1

    3f2723537cc5e7c9f634a0c5472941676e6d8bf3

  • SHA256

    88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c

  • SHA512

    5de13693daca9550aafb84b8702c8cdc88f0a3aec39e8156c83bd4327db2f9007026c0458d21c0768874611207b45347bbf78f627a58e68326087d04ee0e975b

  • SSDEEP

    12288:YEQoSpqhBYyp7N5dxqCxQgQPyo1uoLKNPSxR+BEZ4o3+qllz+NLR1xS:Yivp7N5dA6FQPlLCPSxRJtOqbCRG

Malware Config

Signatures

  • Detects executables containing possible sandbox analysis VM usernames 4 IoCs
  • UPX dump on OEP (original entry point) 7 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • UPX packed file 7 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 12 IoCs
  • Drops file in Program Files directory 19 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c.exe
    "C:\Users\Admin\AppData\Local\Temp\88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3216
    • C:\Users\Admin\AppData\Local\Temp\88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c.exe
      "C:\Users\Admin\AppData\Local\Temp\88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c.exe"
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:5376
      • C:\Users\Admin\AppData\Local\Temp\88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c.exe
        "C:\Users\Admin\AppData\Local\Temp\88ef1449f795d3ffadb4c5d5cd4bdad6741d93687f4eec8343c01497cb6e386c.exe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:4408

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Microsoft Office\root\vfs\ProgramFilesCommonX86\Microsoft Shared\spanish blowjob public mature .avi.exe

    Filesize

    1.7MB

    MD5

    1198d0bbcc6745730523b6f38da2c4cd

    SHA1

    957ef4e2aeffb3e63bdf646a2671849d9ca43c9a

    SHA256

    cac096ad2a9b67796c7fb0471d7099fb04d96a9c997f5e1ac06d6ae2c632f47a

    SHA512

    1e75b72f2929acdfae3d1b558971e642a31805f198b89d5456c8590e798432f4d8d20a22a14ae047c270674194ed995aa5ae7a8381e398ec183e0c30ff82eaa9

  • memory/3216-0-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/3216-193-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4408-159-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/4408-196-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/5376-38-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB

  • memory/5376-194-0x0000000000400000-0x0000000000420000-memory.dmp

    Filesize

    128KB